| 摘要 |
<p>A copolymerized polyester for a binder according to the present invention is characterized by polymerizing (a) a terephthalic acid (a1) and 2,5-furan dicarboxylic acid (a2) with a dicarboxylic acid component, and (b) ethylene glycol (b1) with a diol component. The dicarboxylic component (a) can additionally comprise isophthalic acid (a3) in addition to the terephthalic acid (a1) and the 2,5-furan dicarboxylic acid (a2). The ethylene glycol (b1) can additionally comprise diethylene glycol (b2). The (a) dicarboxylic component is preferably used in 50-80 mol%, and the (b) diol component is preferably used in 20-50 mol%. The (a) dicarboxylic component preferably has a terephthalic acid (a1) 50-99 mol% and 2,5-furan dicarboxylic acid (a2) 1-50 mol%.</p> |
